Material:

PP (Polypropylene)

Color can be customized

100%BPA free,non toxic

Standard size:

19.05mm,20mm,25mm,25.4mm,28.6mm,35.56mm etc. (Φ9.5mm-Φ100mm)

By covering the surface of your cooking vessel with these polypropylene balls, a reduction in water evaporation of up to 90% can be achieved, crucial when cooking using a thermal circulator for long periods of time. Undesired effects of light and odours are also significantly reduced.

The polypropylene balls are lightweight with a very hard and smooth surface which also helps prevent bacteria and chemical corrosion. The steam trapping balls allow you to cook without a cover with minimal heat loss and evaporation.

Characteristics:

Preventing Evaporation. 

Insulation helps prevent evaporation from the pot. This is especially important for longer cooking periods or when cooking at higher temperatures.

Increasing Efficiency. 

Besides evaporation control, having a lid of sorts helps with energy use and efficiency. The more heat that stays in the vessel, the less works to maintain temperature.

Maximizing Tank Capacity. 

Proper insulation also allows you to cook with containers beyond the recommended maximum tank capacity.

Flexibility. 

Sous vide balls can be dropped into any container to insulate it, no matter what size and shape as long as there are enough to cover the surface of the water.

Cost. 

A quick search shows most ping pong ball packages (you need 75-100) are half the cost of a standard lit.

Hassle-free. 

Another bonus is the ability to add food, adjust the placement of food, or remove food without hassling with an additional lid. Just reach right in with some tongs, or grab the edge of the bag.

Easy Clean-up. 

When you’re done, just drain the water through a strainer to catch the sous vide balls, then store them in your container to reduce your kitchen clutter.