Lye Tanks

Tank Options:

20 Gallon 45 Gallon 85 Gallon
Capacity - Liquid (liters) 75 L 170 L 321 L
Capacity - Weight (lbs) 160 lbs 360 lbs 680 lbs
Capacity - Weight (kg) 73 kg 163 kg 308 kg
Dimensions (in) 20.5" x 17.2" 25.7" x 23.0" 33.7" x 27.5"
Dimensions (cm) 52.0 cm x 43.7 cm 65.3 cm x 58.4 cm 85.6 cm x 69.8 cm
Standard Heating Element (1) 120V / 1500W 120V / 1500W 220V / 3000W
Standard Power Draw 12.5 amps 12.5 amps 13.7 amps
Shipping Options UPS Freight Freight
(1) All tanks available with 220V / 3000W heating element

Lye Tank FAQ:

What’s the most efficient way to prep my lye solution?

If you’re making soap, shampoo or any other cosmetic product that uses lye, your goal should be to prepare it as few times as possible during the week. You should be making lye no more than once per day. If possible, you should make it once a week.

Making lye for use during multiple days is called master batching. This can be done in two ways.

50-50 masterbatch: Make a 50% lye solution and dilute it to the desired concentration when using it
Ready to use masterbatch: Make lye to the concentration you normally use while making soap.

Master batching will save you time, make your lye solution more consistent and reduce your exposure to lye fumes.

Can I make lye with ice?

Yes. Making your lye with ice can help your lye cool down faster and reduce the vapors that are released.

How can I reduce the fumes from my lye when making soap?

Make sure you’re storing or prepping your lye in a stainless steel tank with gaskets and a lid. This will keep your lye vapors in the tank when it’s cooling down.

To further limit your exposure to fumes, you can:

1. Make at End of Day: If you prep your lye at the end of the day and let it cool down overnight, the vapors will condense back into the tank as it cools and it will be ready to use in the morning.
2. Use an exhaust hood: Set your tank up under an exhaust hood to vent the fumes outside. Any kitchen exhaust hood will work.
3. Prep Lye with Ice: This reduces the amount of time your lye needs to cool and eliminates fumes

In all cases, when working with lye, be sure to use a proper respirator with Organic/Acid cartridges – a regular paint mask or respirator will not protect you. Use Nitrile gloves and protective clothing. We carry all of these.

How long can I keep lye in my tanks?

You can keep your lye in your tanks for 3-4 weeks due to the gaskets on the tanks. Do not keep your lye this long if you’re using a system that doesn’t seal your lye.


Watch Ariane Arsenault of La Fille de la Mer set up and review her Soap Equipment Lye Tank!
Watch our Lye Tank being used in a Large Production Soap Setup!

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