[Tex/LaTex] how to set the space between paragraphs with beamer

beamerparagraphsspacing

I am trying to set the space between paragraphs in beamer (in a block environment).

I tried using \setlength{\parskip}{8pt plus 1pt minus 1pt} in the beginning of the document, with varying numbers (up to 30pt), but that never changed a thing.

Is there a way to set larger spaces between paragraphs when using beamer?
I could use \vspace perhaps (did not try), but that sounds like a bad solution.

EDIT:
I should have mentioned: I am doing it with beamerposter.sty.

here is a minimal example.

\documentclass[final,t]{beamer}
\mode<presentation>
{
 \usetheme{Warsaw}
}

\usepackage{times}
\usepackage{amsmath,amsthm, amssymb, latexsym}
\usepackage{exscale}
\usepackage{booktabs, array}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage[orientation=landscape,size=custom,width=230,height=110,scale=1.9]{beamerposter}

\setlength{\parskip}{35pt plus 1pt minus 1pt}

\begin{document}
\begin{frame}{}
\begin{columns}[t]
\begin{column}{.3\linewidth}
  \begin{block}{Title}
  A

  B

  \end{block}
\end{column}
\end{columns}
\end{frame}

\end{document}

A and B should be much more separated, but they are not here.

Best Answer

By using \addtobeamertemplate you can set \parskip for each block environment:

\addtobeamertemplate{block begin}{}{\setlength{\parskip}{35pt plus 1pt minus 1pt}}

It works with your minimal example.

That command \addtobeamertemplate is very useful for many kinds of modifications.

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