Kombucha in a three-liter jar. Objects: glass jar (name "Jar"), Kombucha ("Mushrooms"), cloth ("Cloth") applied the Unwrap UVW modifier. The cloth ("Cloth") has no thickness, but you can set the thickness by applying the Shell modifier (Outer Amount = 0.1 - 0.2 mm). The turbid sediment ("Dreg") at the bottom is made with a separate geometry and, if necessary, can be hidden.

Polys: 81,120 (whole scene)
Verts: 64,856 (whole scene)

For Corona render, it is recommended to install a version not lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.