Okay, so I’ve been having this problem. I bake a lot, like, a lot a lot. And sifting flour? Ugh, the worst. It takes forever, my arm gets tired, and honestly, it’s just messy. I saw those fancy automatic sifters online, but they’re either super expensive or look like they’ll break after two uses. So, I thought, “I can probably make one myself.”
The Great Sifter Project Begins
First, I grabbed an old plastic container – you know, the kind you get takeout soup in? Washed it out real good, obviously. Then I found a small, battery-powered motor I had lying around from some old toy. No idea what the toy was, but the motor looked perfect.

Next, I needed something to actually do the sifting. I dug through my kitchen drawers and found a fine-mesh strainer, the kind you use for tea. It was a little small, but I figured it would work for a prototype.
Putting it All Together (aka The Messy Part)
I cut a hole in the bottom of the plastic container, just big enough to fit the strainer snugly. Lots of plastic shavings everywhere. Then, I hot-glued the strainer in place. Probably should have used something stronger, but hot glue is my go-to for everything. Don’t judge.
Now for the motor. This was tricky. I needed to attach something to the motor shaft to make it shake the strainer. I ended up using a piece of a plastic fork – I cut off one of the tines and glued it onto the motor shaft, off-center, so it would wobble. Very scientific, I know.
I attached the motor to the inside of the container lid, making sure the fork-tine-thingy was positioned right above the strainer. More hot glue. More mess. I used some tape to stick the * ain’t stupid if it works!
The Moment of Truth
I poured some flour into the strainer, held my breath, and flipped the switch on the motor. It whirred, it wobbled, and… flour started sifting through! It was slow, and a bit shaky, but it worked! Flour was actually falling through the mesh, and I wasn’t even breaking a sweat.
- Success (sort of)! It sifts flour.
- It’s ugly as sin. Seriously, this thing is not winning any beauty contests.
- It’s probably not food-safe. Hot glue and plastic forks? Yeah, probably not ideal.
- It needs improvements. A bigger strainer, a stronger motor, and definitely a better way to attach everything.
So, there you have it. My homemade automatic flour sifter. It’s not perfect, but it’s a start. I’m calling it a win, even if I do need to build version 2.0 sometime soon. Maybe I’ll even invest in some actual engineering tools next time. Or maybe not. Hot glue is pretty amazing, after all.