Some extra fine grain developer formulae contained Sugar
ID-44 an Iford developer was one and Harry Champlin had a sweet tooth as well, so as long as the sugars are well mixed in they won't do a lot of harm.
Originally Posted by TheFlyingCamera
Yes- the super-cheap DIY solution is a thin glass plate (or plexi to lighten the load, but glass is better because it's more rigid) with a bit of corn syrup, honey, or blueberry jam (the blueberry because it has no seeds to cause unevenness behind the film) in the corners and the center of the plate. If you do an adequate pre-wash when developing your film, there's no issue with contamination - the sugar-based adhesive comes out in the wash along with the anti-halation layer.