Gli <b>stili</b> della birra differiscono a seconda del tipo di fermentazione :
<ul>
<li class=normal>la fermentazione spontanea: sfrutta i lieviti naturali presenti nell'aria, il Brettanomyces bruxellensis e il Lambicus 
<li class=normal>la bassa fermentazione: a una temperatura di 10-15 &deg;C 
<li class=normal>l'alta fermentazione: a una temperatura di 15-30 &deg;C 
</ul>
Di seguito gli stili pi&ugrave; diffusi.<br>
<table border=1 cellpadding=2 cellspacing=0 class=outtable7 >
<tr>
<td valign=top><b>Stile</b></td><td valign=top><b>Tipi</b></td><td valign=top><b>Fermentazione</b></td></tr>
<tr>
<td valign=top>ABBAZIA </td>

<td valign=top>dubbel,tripel,quadrupel</td>

<td valign=top>Alta</td>

</tr>
<tr>
<td valign=top>ALE</td>

<td valign=top>belgian red ale,belgian strong ale,bitter ale,cream ale,dark ale,english brown ale,indian pale ale,irish red ale,mild ale,old ale,pale ale,scotch ale</td>

<td valign=top>Alta</td>

</tr>
<tr>
<td valign=top>BIERE BLANCHE,WEIZEN,WEISSBIER</td>

<td valign=top>altbier,barley wine,berliner weizen,hefe weizen,kolschbier,kristall weizen</td>

<td valign=top>Alta</td>

</tr>
<tr>
<td valign=top>BOCK</td>

<td valign=top>doppelbock,eisbock,hellesbock,maibock</td>

<td valign=top>Bassa</td>

</tr>
<tr>
<td valign=top>LAGER</td>

<td valign=top>american lager,dark lager,eisbier,esotiche,golden lager,ice beer,kellerbier,kulmbacher,light beer,malt liquor,münchner dunkel,münchner helles,strong lager</td>

<td valign=top>Bassa</td>

</tr>
<tr>
<td valign=top>LAMBIC</td>

<td valign=top>cassis,faro,framboise,geuze,kriek,pecheresse</td>

<td valign=top>Spontanea</td>

</tr>
<tr>
<td valign=top>PILSNER o PILS</td>

<td valign=top>american pilsner,bière de garde,bière de mars,deutscher pilsner,dortmunder,export,kellerbier,marzen,oktoberfestbier,premium lager,rauchbier,schwarzbier,vienna</td>

<td valign=top>Bassa</td>

</tr>
<tr>
<td valign=top>PORTER</td>

<td valign=top>-</td>

<td valign=top>Alta</td>

</tr>
<tr>
<td valign=top>STOUT</td>

<td valign=top>dry stout,imperial stout,irish stout,milk stout,oatmeal stout,oyster stout,stout chocolate,sweet stout</td>

<td valign=top>Alta</td>

</tr>
<tr>
<td valign=top>TRAPPISTA</td>

<td valign=top>dubbel,tripel</td>

<td valign=top>Alta</td>

</tr>
</table>