Liquid Glucose?

[jfresch]

Can you substitute corn syrup for liquid glucose?

[Broken English]

I've done the reverse a few times and it turned out fine (only for stuff like salted butter caramels), so I guess it would depend on the application. I'm not too sure on the actual differences in the way they behave though.

[pastrygirl]

Sometimes. The main difference is that corn syrup has a lot more water. In something like caramels that are cooked to a particular temperature, the water will cook off. In a ganache filling for molded chocolates, the additional water could shorten shelf life and affect texture. I imagine you could reduce corn syrup to commercial glucose syrup consistency, then you would be good to go.

[Lindacakes]

You need to be careful about your corn syrup. Most of them contain high fructose corn syrup.

Glucose is pure.

[emannths]

Karo, the most common grocery store corn syrup, has no HFCS. It does have vanilla though.

Glucose syrup isn't pure glucose. Typically they're only about 20% glucose, with the rest being other sugars and polysaccharides.