Overfeeding may cause a number of problems:

1. It could cause the bin to heat up just like a compost pile.
2. The inability of the worms to process the material quickly may result in other, less desirable organisms doing the job.
3. The decay of excessive material can make the bin 'sour'. This is generally thought to be a temporary, strong acidification of the bin from the decomposition process.

However, these are general things and may or may not actually occur in any given bin.

If your present methodology is working well for you there is no reason to change.

worms don't "wait" til they've finished one batch to start on the next, they feed on microbially active material - they're not 'vegetarian', they are actually eating [slurping] the decomposing surface of the material with the decomposer bacteria - when the newer material becomes attractive to them they'll dig in

worms will consume about 1/2 their weight per day, adding a lot more than that continually will result in a mess, one way or another - they can only eat so fast, and as said, excess feedstock will attract other things, like soldier flies, house flies, fruit flies, and on and on

Bill

The messages I have read that warn against overfeeding seem to be in books about growing worms commercially. There it might be beneficial to optimize the worm breeding conditions. Also, these people are paying for the food, most likely corn-meal or similar. You don't want to waste your food and cause less than optimal conditions if your in business to make a profit. However, if you are using the worms to get rid of your unwanted food scraps then the same rules wouldn't apply. Imagine if we were talking about the regular compost pile and someone said that you shouldn't add more dead leaves ( food) until the organisms had consumed all the dead leaves that they already have.
It is true that adding ten pounds of foodwaste per week when your worms can only eat five pounds per week will cause a glut and may possibly affect the pH, etc. but that food is going to decompose, be it by worms or other organisms. I have a worm-factory inside the garage and a regular compost bin outside (also contains worms) that gets all the overflow. When ready to empty my food-waste bin from under the sink, I look through and choose all the prime stuff, blackened bananas, rotten peaches and stuff for my most-favored-worms who live in the lap of worm luxury. Things like two inch thick broccoli stalks and dead flower arrangements go to my second-class-citizen-worms outside in the freezing cold where they stare resentfully towards the garage door and mutter about revolutions and paybacks.

Overfeeding could be defined as food not processed when you feed subsequently. Stuff setting in there is gonna cause you problems (if you've got indoor bins). Feed at the same rate they eat it.

chuckiebtoo