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: 3. The solution is kept at 90°C for up to 10 minutes.
: 4. A colour change indicates the presence of glucose or fructose. If they are present the solution will eventually turn brick red or brown.
{| class="wikitable"
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|[[File:BenedictsTest.png|center|600px]]
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| style="height:20px; width:600px; text-align:center;" |When sugar is present the Benedict's solution turns from blue through several colours until it becomes brick red or brown.
If this was done with sucrose the Benedict's solution would stay blue.
|}
===Disaccharides===