User Guide

v 1.3

Copyright © jMaster Studio 2014


SoapLab contains instructions of fundamentals of making handmade soap. Users would be familiar with the knowledge to make their own handmade soap after they studied the contents.

As an example, the following picture is the content of "pH Testing".


The tools that might be used during the making of handmade soap are introduced in SoapLab, including the timing and notices.

The following picture is an example of introducing "Stick Blender".

Recipe Management

There are many practical recipes are build in SoapLab, including bar soap, shampoo, laundry detergent, and dish detergent. Users can add their favorite recipes to SoapLab for management.

Touch "Edit" to add or delete recipes.

Swipe left on the name of a recipe to delete the recipe.

Recipe Detail

The detail of each recipe is presented as the following picture. The weight of lye and water, oils, additives, and overall property of the recipe are organized in the layout convenient to design your own recipe.

Lye Calculation

SoapLab can do lye calculation for NaOH and KOH of various purity, in solid or liquid state, the concentration and the weight unit you preferred. The adjustable options have boundaries for safety. Users can try the combinations freely. Touch "Done" to save the altered values.

In order to do cost analysis, please input the cost of lye by touching the "Edit Cost" button.

Property Charts

The property charts include the pentagon of overall property, the bar of single property, and the ratio bar of fat acids. They are convenient to design and predicate the properties of the recipe. The covered area in a pentagon would be larger if the value of every property nears the appropriate range.

The property bar is divided into three blocks. The value of the property is appropriate if the vertical indicator ① is located in the green block ②.

The value of the property is insufficient if the indicator ① is located in the blue gradient block ③. The value is increased from left to right. Increasing the value will make the indicator approach to the white area that means the value is near appropriate range. You should adjust the recipe by increasing the value.

The value of the property is too much if the indicator ① is located in the red gradient block ④. The value is increased from left to right. Decreasing the value will make the indicator approach to the white area that means the value is near appropriate range. You should adjust the recipe by decreasing the value.

The arrow ⑤ shows the direction of increasing value.

In pentagon chart, the indicator ① is a hollow circle as the following figure. In order to maximize the covered area of appropriate range, the green block ② is exchanged with red gradient block ④ to move it to the perimeter. The direction of increasing value is reversed in red gradient block ④. The blue gradient block ③ remains unchanged.


Over one hundred of oils and additives are included in SoapLab. Input keywords in the search bar would help you find the oil you want. You can specify the oil to be used as super fatting by the "super fatting" switch. The properties and the fat acids of the oil are included for reference.

The star at the left of oil name marks the oil to be favorite one. The star at the right of search bar switches to show favorite oils only.

Touch the "Edit Cost" button to input the cost of the oil. Generally, oils are pricing by volume but weight. However, oils is a recipe are measured by weight. The real cost of an oil can be calculated by the density of the oil. The most oils in SoapLab are with density information. But the density may be varied for the same oil of different brands. If you want to confirm the density of an oil, you can measure the weight of 100mL of the oil. Input the result to SoapLab. The density of most oils is around 0.9g/mL. You can assume this value when you cannot get the density of the oil. The error of the calculated cost would be small and can be ignored generally.


You can choose hundreds of additives in your recipe. The color in soap is presented as the background color of the additive (if available). You can also choose how the additive would be processed in the recipe.

Touch "Edit" button to show the menu.

Modify the name, the description, and the cost of the additive.

Touch Soap Color button to show the color picker. There are 216 colors available.

Units, Feedback, and Settings

The recipe can be presented in different units of measurement, including temperature, weight, and currency. The change would be effective immediately once you alter the unit. The weight of each item will be converted automatically.

The name of the producer is presented on the title of recipe reports.

When you have any troubles and suggestions, please use the Feedback function to contact with us. You will get quick response. Notice that if you write an issue in the review of the App Store, there is no ways to do any response due to the limitations of App Store. There is no channel to contact with you to solve the problem.

If you think SoapLab is good, we would appreciate your recommendation on App Store.

Guidance of Processing

The guidance of processing is according to the recipe. Users can proceed on the check list step by step. Notices are attached to prevent the failure in advance. The guidance can make the soap as successful as possible for the newbies.

While you are following the guidance to make soap, touch the music note to play your favorite songs. Touch each item to switch the status. An information icon is presented if there is extra information for the item. Touch "Reset" button will clear all status and back to the first step. The guidance is ended if you touch "Done" button.

There are icons represented the overall status of guidance at the bottoms of the screen. A green check means all the steps in that page are done.

Professional Reports

SoapLab generates professional report that is composited of photo, recipe, and property charts. The report is a photograph which is the most common file format to share with communities and friends. After touch the "Recipe report" button, you may choose "Camera" to take a photograph of your soap immediately. You may also choose "Photo albums" to select an existed photograph. If you cancel the selection of photograph, a default picture is used to generate the report. You might delete the report from the "Camera Roll" if you don't like the report.

The generated report is saved in "Camera Roll". You can use the "Actions" button to share it with communities or do any further processing.

Cost Analysis

Cost Analysis generates a report of the cost of the recipe.

Touch the camera icon at top right to save the report of cost analysis. The report is saved in the Camera Roll as a picture. You can use the "Actions" button to share it with communities or do any further processing.

Adjust weight

The total weight of the oils of the recipe can be scaled up/down while keeping the ratio. The weight of lye and water is recalculated automatically.


You can set a notification at the date that the soap is cured to notice you the harvest.

Touch "Manufacture Date" and "Cured Date" to show the date picker to set the date you desired. The slider is helpful to set the days of cure. Please set the cured date when the interval is over 99 days.

You have to permit the access of the Calendar at the first time. Please touch "OK".

A confirmed message is appeared after the notification is set successfully.

You can open the Calendar to check the notification. There will be an alarm at 9:00 AM of the date.