Why does tofu stick to glass containers?

Question

Frustrated with your tofu sticking to the glass storage container? Learn a simple trick to prevent this from happening.

Answer 1

Tofu sticks to glass containers primarily due to the smooth, non-porous surface creating a strong suction effect, especially when moisture is present. This suction force makes it difficult to separate the tofu without tearing it.

Detailed Explanation:

Tofu, especially when stored in water, has a moist surface. Glass, being a smooth and non-porous material, doesn't allow for any air pockets or texture to break the contact between the tofu and the container. This creates a near-perfect seal. When you try to lift the tofu, you're essentially fighting against this suction. The water between the tofu and the glass acts as an adhesive, increasing the sticking effect. The larger the surface area of contact, the stronger the suction becomes. Therefore, a large block of tofu in a glass container will be more prone to sticking than smaller pieces. The lack of any texture on the glass surface means there's nothing to disrupt this seal, making it difficult to slide or pry the tofu loose without damaging it.

Pro Tip:

To prevent tofu from sticking, line the glass container with parchment paper or a silicone mat before placing the tofu inside. This creates a barrier and reduces the direct contact, making it much easier to remove the tofu later.