Question: I am looking to use a piece of wood to lay under my sofa cushions because it sinks to much when you sit on it. I can't afford a new sofa so I was told I could use a piece of wood under the cushions. I need it to support a person 300 lbs- 400 lbs. They are disabled and do a lot of sitting.

Answer: 
I would keep the WD40 as far away from food and food preparation equipment as possible. The [MSDS (Material Safety Data Sheet)](https://www.wd40.com/files/pdf/msds-wd453764182.pdf) for WD-40 as published by the manufacturer states:

**Emergency Overview:**

DANGER! Harmful or fatal if swallowed. May cause eye irritation. Avoid eye contact. Use with adequate 
ventilation.
I use barbeque cleaner and it works wonders especially if you let it soak for few hours.
After you clean off the barbeque cleaner, wash the hobs of with soapy water.
Just make sure you rinse it out very well before you turn the hobs on again.