购买蜂蜜的时候，能看倒蜂蜜的包装上有蜂蜜浓度的标识。蜂蜜的浓度到底是如何测试出来的？蜂蜜浓度为生命会有高有低呢？

    衡量蜂蜜的浓度一般用波美计进行测定，也可用比重法进行计算或以糖量仪测定其糖分含量，从而测得含水量的高低和浓度高低(详见表1)
                        
    蜂蜜浓度的高低，决定于酿造时间的长短。时间越长水分越少，浓度越高，反之亦然。因此取蜜间隔时间越长，浓度越高而水分含量越低，取蜜间隔时间越短，产量虽高，但浓度低，含水量高，易发酵变质。
                                
    表1  蜂蜜含水量与波美度、比重、含糖量对照表
                        ------------------------------------------------------------
                        含水量 (/%)     波美度 (20%)    比  重       含糖量(/%)
                        ------------------------------------------------------------
                        27.0             38.0            1.3561       71.1       
                              
                        26.0             38.5            1.3625       72.2 
                        25.0             39.0            1.3689       73.2 
                        24.2             39.5            1.3755       74.2 
                        23.1             40.0            1.3821       75.4  
                        22.3             40.5            1.3887       76.2 
                        21.2             41.0            1.3955       77.2
                        20.2             41.5            1.4022       78.1
                        19.2             42.0            1.4091       79.1 
                        18.1             42.5            1.4160       80.3 
                        17.0             43.0            1.4230       81.3
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