${(function(){
const get_random_six_digits = () => {
return Math.random().toString().slice(-6)
};
const wholesale_enabled = false;
const setting_product_image_display = "133.33%";
const product_image = data.image;
const secondary_image = data.secondImage;
const image_width = product_image.width;
let image_height = product_image.height;
if(setting_product_image_display == '100%'){
image_height = image_width
}else if(setting_product_image_display == '133.33%'){
image_height = image_width * 1.3333;
};
const product_image_hover_on = true && !!secondary_image.src;
const has_save_label = true && ((+data.compare_at_price) > (+data.price));
const is_single_variant = data.variants.length == 1;
const min_price_variant_href = (data.min_price_variant && data.min_price_variant.available) ? data.min_price_variant.withinUrl : data.withinUrl;
const retail_price_max = data.retail_price_max || data.compare_at_price_max;
const THUMBNAILS_MAX_SIZE = 3;
const thumbnails = data.thumbVariants.slice(0, THUMBNAILS_MAX_SIZE);
const image_wrap_id = 'image_wrap_' + get_random_six_digits();
const image_carousel_id = 'image_carousel_' + get_random_six_digits();
const thumbnails_selector_id = 'thumbnails_selector_' + get_random_six_digits();
const form_id = 'form_' + get_random_six_digits();
const mixed_wholesale = data.mixed_wholesale;
return `
${
data.price_min != data.price_max
? `from
+${data.remainInvisibleThumbCount}
`
})()}
info@airwoods-freezedryer.com
info@airwoods-freezedryer.com
Home
/
Understanding the Freeze Drying Process: Get the Most Out of Your Home Freeze Dryer
Understanding the Freeze Drying Process: Get the Most Out of Your Home Freeze Dryer
Jul 23, 2025
Knowing how the freeze drying process works is key to getting the best results from your equipment.Airwoods 7KG Home Freeze Dryer for the first time, or you're exploring long-term food storage, this guide breaks down the process into three essential stages.
Step 1: Pre-Freezing
Freeze drying works through sublimation — the transition of water from solid (ice) directly to vapor without passing through the liquid phase.fully frozen beforehand. Whether you're working with fruits, vegetables, cooked meals, or meats, it's best to pre-freeze them in a regular freezer until they reach a stable, deep-frozen state.
Related:How to preserve the nutritional value of fruits and vegetables
Step 2: Primary Drying
Once the food is loaded into the Airwoods Freeze Dryer , the machine creates a strong vacuum inside the drying chamber.sublimate directly into vapor. A built-in condenser traps the vapor as frost. This is the longest stage of the freeze drying process — lasting from several hours to a few days depending on food type, thickness, and moisture content.
Step 3: Secondary Drying
Even after the ice is removed, some water molecules remain bound at a structural level.secondary drying phase gently raises the temperature to remove this residual moisture.long-term storage without refrigeration.
Related:Why freeze-dried food is ideal for camping: 6 essential benefits
Visual Tip: The Science Behind Sublimation
In physical chemistry, sublimation refers to the direct phase change from solid to gas.
Your shopping bag is empty
Continue shopping
*${item.quantity}
${item.item_text}
${discount_item.title}
(-
${function() {
const textArray = ("Save {{save_amount}}").split(/\{\{\s*save_amount\}\}/);
if (textArray.length > 0 && textArray.length < 2) {
textArray.push('');
}
return textArray.map((text, index) => {
if (index == 0) {
return `${text} `;
}
return `
${text}
`;
}).join('');
}()}
${function() {
const textArray = ("Save {{save_amount}}").split(/\{\{\s*save_amount\}\}/);
if (textArray.length > 0 && textArray.length < 2) {
textArray.push('');
}
return textArray.map((text, index) => {
if (index == 0) {
return `${text} `;
}
return `
${text}
`;
}).join('');
}()}
${discount_application.title}:
-
${data.invalid_msg}
Check out
Taxes and shipping calculated at checkout
${data.invalid_msg}
${function() {
const textArray = ("Save {{save_amount}}").split(/\{\{\s*save_amount\}\}/);
if (textArray.length > 0 && textArray.length < 2) {
textArray.push('');
}
return textArray.map((text, index) => {
if (index == 0) {
return `${text} `;
}
return `
${text}
`;
}).join('');
}()}
${function() {
const textArray = ("Save {{save_amount}}").split(/\{\{\s*save_amount\}\}/);
if (textArray.length > 0 && textArray.length < 2) {
textArray.push('');
}
return textArray.map((text, index) => {
if (index == 0) {
return `${text} `;
}
return `
${text}
`;
}).join('');
}()}
${function() {
const textArray = ("Save {{save_amount}}").split(/\{\{\s*save_amount\}\}/);
if (textArray.length > 0 && textArray.length < 2) {
textArray.push('');
}
return textArray.map((text, index) => {
if (index == 0) {
return `${text} `;
}
return `
${text}
`;
}).join('');
}()}
${discount_application.title}:
-
Check out
${data.invalid_msg}
Check out
Taxes and shipping calculated at checkout
Subtotal:
${discount_application.title}:
-
Check out
Taxes and shipping calculated at checkout
const summaryStickyRender = document.querySelector('#cart-drawer-summary-sticky-render');
if (summaryStickyRender) {
document.body.style.setProperty('--cart-drawer-summary-sticky-height', summaryStickyRender.clientHeight + 'px');
}
${function(){
console.log('quick-shop-render',data);
const productData = data.product;
let product_change_event = '',
mouse_over_event = ' ';
mouse_out_event = '';
const product_options = productData.options.filter(Boolean) || [];
const selectedVariant = productData.variants.find(v => v.available) || productData.variants[0];
const statusLan = ((selectedVariant && !selectedVariant.available) || (!selectedVariant && !productData.available)) ?
"Sold out" :
"Add to cart";
return `
`
}()}
${function(){
const currentSelectVariant = data.variant;
const defaultVariant = (data.product && data.product.variants && data.product.variants[0]);
const variantData = currentSelectVariant || defaultVariant || data;
const retail_price = variantData.retail_price || 0;
return `
`
}()}
${function(){
const wholesale_enabled = false;
const qty = data.quantity || 1;
const currentSelectVariant = data.variant;
const defaultVariant = (data.product && data.product.variants && data.product.variants[0]);
const productVariant = null;
const variantData = currentSelectVariant || defaultVariant || productVariant;
const wholesale_price = variantData.wholesale_price || [];
if(wholesale_enabled && wholesale_price.length > 0) {
let wholesaleIndex = wholesale_price.findIndex(item => {
return item.min_quantity > qty;
});
if(wholesaleIndex < 0){
wholesaleIndex = wholesale_price.length - 1;
}else if(wholesaleIndex > 0){
wholesaleIndex = wholesaleIndex - 1;
}
const wholesalePrice = wholesale_price[wholesaleIndex] || '';
return `
`
}else {
const price = variantData && variantData.price;
return price != undefined ? `
` : '
${function(){
const optionName = option.name || '';
const optionId = option.id || '';
let isThumbImage = !!option.showThumbImage;
const thumbStyle = "image_with_text";
const variantType = "button";
const isSelected = (value) => {
const selected = (data.selectedOptions || []).find(v => v.name === optionName);
return selected && selected.value.length && selected.value[0] == value;
};
const getThumbImage = (value) => {
const options = data.product.options || [];
const option = options.find(o => o.name === optionName);
if (option.thumbImages) {
const thumbImage = option.thumbImages.find(t => t.value === value);
if (thumbImage && thumbImage.image) {
return {
src: thumbImage.image.src,
alt: thumbImage.image.alt
};
}
}
return {src: '', alt: ''};
};
return `
${optionName}:
${data.selectedOptions && data.selectedOptions.length && data.selectedOptions.find(v => v.name === optionName).value[0]}
`
}()}
${data.value}
const TAG = "spz-custom-popup";
const DISPLAY_TYPE = {
POPUP: "PTT_POPUP" // 弹窗
};
const API = {
LIST: `/api/storefront/promotion/placement/list`, // 获取弹窗列表
REPORT: `/api/storefront/promotion/placement/data/report` // 上报数据
};
const DISPLAY_DEVICE = {
PC_AND_MOBILE: "PD_PC_MOBILE", // PC和移动端
PC: "PD_PC", // PC
MOBILE: "PD_MOBILE" // 移动端
};
const REPORT_EVENT = {
CLICK: "PE_CLICK", // 点击事件
IMPRESSION: "PE_IMPRESSION" // 曝光事件
};
class SpzCustomPopup extends SPZ.BaseElement {
constructor(element) {
super(element);
this.popupList_ = []; // 弹窗数据
this.popupZIndex = 1050; // 弹窗层级
// 节流处理 每5s内多次点击 算一次点击上报
this.throttleReport = this.win.SPZCore.Types.throttle(
this.win,
(data) => {
this.reportData(data)
},
5000
)
}
static deferredMount() {
return false;
}
buildCallback() {
this.action_ = SPZServices.actionServiceForDoc(this.element);
this.templates_ = SPZServices.templatesForDoc(this.element);
this.xhr_ = SPZServices.xhrFor(this.win);
this.setupAction_();
this.viewport_ = this.getViewport();
}
mountCallback() {
this.fetchData_();
}
// 接口请求，获取数据
fetchData_() {
const id = window.SHOPLAZZA.meta.page.template_type === 51 ? window.SHOPLAZZA.meta.page.resource_id : 0;
return this.xhr_.fetchJson(API.LIST, {
method: 'POST',
body: {
page_id: window.SHOPLAZZA.meta.page.template_type,
placement_type: DISPLAY_TYPE.POPUP,
discount_id: id
}
}).then((res) => {
// 请求成功 执行render
this.doRender_(res.list);
}).catch((err) => {
console.error(err);
});
}
// 渲染dom
doRender_(data) {
this.popupList_ = data || [];
if (this.popupList_.length > 0) {
this.popupList_.forEach((item) => {
item.config = JSON.parse(item.config);
})
}
return this.templates_
.findAndRenderTemplate(this.element, { list: this.popupList_ })
.then((el) => {
const children = this.element.querySelector('*:not(template)');
children && SPZCore.Dom.removeElement(children);
this.element.appendChild(el);
})
.then(() => {
// 遍历显示弹窗
this.popupList_.forEach((item) => {
this.showPopup_(item);
});
})
}
showPopup_(popup) {
// 展示弹窗 符合展示条件的弹窗
const $popup = document.querySelector(`#popup-${popup.id}`);
$popup && SPZ.whenApiDefined($popup).then((api)=> {
const isPC = this.viewport_.getWidth() >= 960;
const isMobile = this.viewport_.getWidth() < 960;
const isMatchPCDevice = popup.device === DISPLAY_DEVICE.PC_AND_MOBILE || popup.device === DISPLAY_DEVICE.PC;
const isMatchMobileDevice = popup.device == DISPLAY_DEVICE.PC_AND_MOBILE || popup.device === DISPLAY_DEVICE.MOBILE;
if((isPC && isMatchPCDevice) || (isMobile && isMatchMobileDevice)) {
// 根据推送时间 延迟展示弹窗
setTimeout(() => {
api.open();
}, popup.delay_seconds * 1000);
}
})
}
// 上报数据
async reportData(data) {
this.xhr_.fetchJson(API.REPORT, {
method: "POST",
body: {
placement_id: data.placement_id,
event: data.event
}
});
}
setupAction_() {
this.registerAction('handleTrack', async(invocation) => {
// 如果是主题编辑器则不用处理
if(window.top !== window.self) {
return;
}
const data = invocation.args;
const event = data.event;
// 点击上报 节流处理
if(event === REPORT_EVENT.CLICK) {
await this.throttleReport(data);
} else {
this.reportData(data);
}
});
}
triggerEvent_(name, data) {
const event = SPZUtils.Event.create(this.win, `${ TAG }.${ name }`, data || {});
this.action_.trigger(this.element, name, event);
}
isLayoutSupported(layout) {
return layout == SPZCore.Layout.CONTAINER;
}
}
SPZ.defineElement(TAG, SpzCustomPopup);
${function () {
const renderData = data.data;
const position_bottom = renderData.height;
const model_style = renderData.subwindow_style == "model1" ? "model-type-icon" : "model-type-icon-with-text";
const filterSubwindow = renderData.subwindow.filter(item =>
renderData.subwindow_style == "model1" && item.image || (renderData.subwindow_style == "model2" && (item.image || item.title))
);
const initFoldStyle = renderData.hover_display === 'foldable' && 'fold';
const initShowStyle = renderData.hover_mode != 'permanent' && 'app-floating-hidden';
const is_model_style_follow_theme = renderData.template_style == "follow_theme" && renderData.subwindow_style == "model2";
const is_model_style_custom = renderData.template_style == "custom" && renderData.subwindow_style == "model2"
let isShowApp = false;
let isCustomPage = false;
const current_page_url = 'https://www.airwoods-freezedryer.com/blog/understanding-the-freeze-drying-process-get-the-most-out-of-your-home-freeze-dryer';
const current_page_type = 'article';
if(renderData.effective_pages.type === 'specify' && renderData.effective_pages.specify_page.includes('custom') && renderData.effective_pages.custom_page.length > 0) {
renderData.effective_pages.custom_page.forEach(item => {
const custom_url = item?.split('?')[0];
if(current_page_url === decodeURI(custom_url)) {
isCustomPage = true;
return;
}
})
}
if(renderData.effective_pages.type === 'all' || (renderData.effective_pages.type === 'specify' && renderData.effective_pages.specify_page.includes(current_page_type)) || isCustomPage) {
isShowApp = true;
}
if(isShowApp && filterSubwindow.length > 0) {
return `
${function() {
if(renderData.hover_mode === "scroll") {
return `
`
} else if (renderData.hover_mode === "threshold_scroll") {
return `
`
} else {
return ``
}
}()}
${function() {
const [firstIem, ...restItems] = filterSubwindow
const item = firstIem;
return `${firstIem ? `
`: ''}
${restItems.length > 0 ? `
${restItems.map(item => `
`).join('')
}
`: ''
}`
}()}
![](data:image/svg+xml;charset=utf-8,<svg height="632px" width="768px" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)